Hiya Brian,
Do I take it that you've got the job of actually designing the marathon course, AND certifying it's accuracy?
If so, then I have to admit that I'm surprised you're considering sending us out towards Inskip because from Cottam back to Cottam (via Salwick, Treales, Wharles, Inskip, Moorside, Woodplumpton and Higher Bartle IF I'm understanding you correctly) means you'll be giving us all a whole half marathon 'out in the sticks'. ...which just reminds me of the motivation sappin wilderness docks phase of London, but twice as long and in our own back yard.
However, I'm pleased you're not considering a 2 lap half marathon course, (cos yes, they're totally boring as hell so seriously reduce entries), BUT! ...surely you can keep the route a lot more central and actually in Preston itself? ...which, let's face it, is where all our friends, family and Guild crowds will be to easily cheer us on.
For example, as a kid in the '72 Guild I can vividly remember the crowds lining New Hall Lane as we paraded festively with bands et al. The atmosphere was just sheer electric to say the least. If you send us out of town for a good HALF of the course then how can the Guild crowds participate?
Or are you indicating with the above course that you've been warned away from the centre? Surely the whole of Preston will be virtually shutting down for this "one race day in 20 year" event anyway?! Can't you persuade them a little more? lol.
I'm not a marathon course designer but it makes total sense to me to ideally have half of your route (or thereabouts) to the south below the Ribble line of Preston then the other half to the north, just specifically because this enable a good 80-90% of Preston Guild people to actively get involved with this marathon, and either run it or support us en route on the day.
How about giving us a course a bit more like this for example, or something pretty similar? Surely the upcoming PR machine about to ensue over the coming 6-10 months realises the importance to Preston of your marathon igniting the spirit of the people to actively engage socially, so that it makes more commercial sense afterwards?